Wall-socket.



J. KENNEDY.

v WALL SOCKET. APPLICATION FILED AUG. 151913.

1,087,299; Patented Feb. 17,191;

z sums-51mm 1.

INVENTOR A TTORNEY J. KENNEDY.

WALL SOOKET.

APPLICATION FILED AUG. 14, 1913. 1, 7, 4 Patented Feb. 17, 1914.

2 SHEETS-BEBE! 2.

INVENTOR I A TTOR/VEY UNITED. STATES PATENT OFFICE.

JOSEPH KENNEDY, O1 YORK, Y., ASSIGNOP. TO THE GLEMEN'TS 60., OF NEW I v YORK, N. Y., A CORPORATION OF. NEW YORK.

WALL-SOCKET.

Application flied August 14, 191 s. SerialNo.-784,673.

1,087,299, Specification of Letters Patent. I

To all whom it may'coacem Be it known that I','Josnrn KnNNsoY, a citizenof the United States-of America, and a resident of New York, county an State of New York, have invented certain new and useful Improvements in Wall- Sockets, of which the following is a specification,-reference being had to the accompanying drawings, forming a art thereof. My invention relates to wal sockets or plugs such as are inserted in walls, floors or other structures of material which will not readily receive and hold the threads of a bolt, for the urpose of forming anchorage 16 members for e bolts or the hke, and its object is, to provide a simple, non-expansible shell with means which the insertion of a threaded device will cause to be securely aflixed to the wall in which the shell is embedded.

I will describe my invention in the followspecification, and then oint out the novel. features thereof in e I appended Referring to the drawings: Figure 1 is a transverse section of a wall with a hole drilled therein with a wall socket within the hole and secured thereto by an inserted bolt. Fig. 2 is a longitudinal section partly in so section, and Fig. 3 an end viewof a wall socket made according to this invention. In Fig. 4 a wall socket like those shown in the preceding figures is shown in longitudi nal elevation part1 in sectionxwith a bolt 85 partiall inserted t erein. This figure illustrates t e operation of the device. Figs. 5. and 6 are sectional longitudinal elevations partly in section of two modified forms of structures embodying the invention. Figs. 7 and 8 are end views of wall sockets made accordin to this invention but of still further m ifications of construction. In Fig.

9, I have she in longitudinal section another structure which also embodies the 46 present invention. Fi 10 is'a similar view of a further modificatlon of structure made according to this invention.

Like characters of reference designate corresponding parts in all the figures.

250 According to this invention the wall socket comprises a circumferentiall continuous shell of hard metal 10, through which are a plurality of holes 11. This shell is rovided with a hning 12 of lead or other soft material which also fills the holes .11.

-When a bolt is inserted in such a device it w1ll cut its own threads in the soft lining thereof. At the same time it will force some of the material of the linin 'through the holes 11 as is shown at 13 in Fig. 4. The manner in which such a device is used may now be'described. A hole 20 is drilled in a wall or other desired structure 21 of approximatel. the diameter of the shell 10 and preferab y of a depth at least equal to the len h of the shell. The socket is then -inserte in this hole and a bolt 22 or other threaded device screwed into it. This causes some of the lining material to be forced through-the holes in the shell against the surface of the hole and this produces a binding effect which securely alfixes the socket to the structure 21 so'that it will remain in place even if the bolt is removed. This is mentioned because of the fact that it is sometimes desirable to detachably aifix an object to the structure by means of a socket anchorage of this character.

. In Fig. 5' the lining 12 isshown tapered 'sothat the maximum binding effect will be at the inner end of the hole in-which the socket is inserted. This is a preferred arrangement for it not, only facilitates'the insertion of a bolt but it provides for the maximum outward pressure being exerted after the bolt. has formed a' number of threads in the linin'g so that any tendency it has to strip such threads is minimized. To further facilitate the insertion of a bolt the lining may be threaded a short way from its outer-end as shown at 14 in Fig. 5. In this figure the holes 11 through the shell are shown as rectangular.

If desired thelining may-be constructed as shown at 12 in Fig. 6, with a plurality of inwardly projecting bands progressively increasing in height toward t e inner end of the device. Such a construction facilitates the insertion of a bolt and its selfthread-cutting eflect. Theholesll through the shell 10 are shown in this figure in the form of a cross.

Other ways of facilitating the insertion of a bolt and its thread cutting effect are to make 'the bore of. the lining elliptical in cross-section as at 12 in Fig. 7, or polygonal in cross-section as at 12 in Fig. 8. In the latter figure the outside of the shell 10 is elliptical in cross-section. This is sometimes preferred .as such a form causes the 11d socket to resist any tendency it may have to turn in the hole when the bolt is being screwed in.

The wall socket illustrated in Fig. 9 comprisesthe perforated shell 10 ,of hard metal with the linin cover 15 of so t metal which may be a separate sleeve or may be integral with the metal which forms the lining.

Fig. 10 shows the shell 10 without an internal lining, but in this case it is provided with a soft metallic cover 16 which fills the perforations in the shell and projects inwardly beyond the bore of the shell and forms lugs 17 in which the bolt may cut threads. I

Only-such limitations are intended as are imposed in the appended claims for as I have shown herein the invention is capable of being used in many forms and modifications.

What I claim is:

1. A wall socket comprising a perforated shell and a relatively soft material filling the perforations and projecting inside of the bore of the shell. I

2. A wall socket comprising a perforated shell of hard metal and a soft metal filling 1-2 ofsoft metal and also a v manaee within the perforations and: projecting in-' 5. A wall socket comprising a hollow cylindrical perforated shell of hard metal and a lining of soft metal fitting the bore of said shell and filling the perforations therein, said lining having a tapered bore.

6. A. wall socket comprising a perforated shell of hard metal and a relatively soft lining therefor adapted to receive the threads of a bolt and of being forced thereby through said perforations.

In testimony whereof, I have hereunto set my hand this 7th day of August in the presence of two subscribing witnesses.

JOSEPH KENNEDY.

Witnesses:

I. B. Moonn, EDNA Zmmnn. 

